Concept Question Listed below are three pairs of initial and final positions that lie along the x axis. Using the concept of displacement discussed in Section 2.1, decide which pairs give a positive displacement and which a negative displacement. Explain.
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Initial position x0
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Final position x
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(a)
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+2 m
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+6 m
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(b)
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+6 m
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+2 m
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(c)
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–3 m
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+7 m
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Problem For each of the three pairs of positions listed above, determine the magnitude and direction (positive or negative) of the displacement. Verify that your answers are consistent with those determined in the Concept Question.
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